Acta orthopaedica Scandinavica
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In a prospective study 60, patients having suspected occult scaphoid fractures, but with normal conventional scaphoid radiographs, also underwent macroradiography. Clinical and conventional radiographic follow-up examinations and MRI identified 8 occult scaphoid fractures and 23 nonscaphoid lesions. Macroradiography identified only 50% of the occult scaphoid fractures.
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To assess whether the clinical knowledge of the treating surgeon had any effect on the reliability of the pain-drawing evaluation, drawings from 50 low-back pain patients were evaluated by the treating surgeon and by three colleagues who had no clinical knowledge of the patient. The evaluation was repeated after 10 days. ⋯ The kappa value in the evaluation when the surgeon had clinical knowledge of the patient was lower (0.29 (95% Cl 0.13-0.45)) than the kappa value in the evaluations made without clinical knowledge (0.60 (Cl 0.45-0.75)). The differences observed in interobserver reliability between open and blind evaluations suggest that clinical knowledge of a patient influences the evaluation of the pain drawings.